Slope Deformation caused Jure Landslide 2014 Along Sun Koshi in Lesser Nepal Himalaya and Effect of Gorkha Earthquake 2015

Yagi, Hiroshi; Sato, Go; Satō, Hiroshi; Higaki, Daisuke; Dangol, Vishnu; Amatya, Shanmukhesh Chandra

doi:10.1007/978-3-030-60319-9_5

Cited by 9 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This ensures that any large landslides that were affected by progressive failure across several monsoon seasons (e.g. the Jure landslide 34 ), but failed catastrophically in one monsoon-season, are not incorrectly attributed to a single monsoon period 3 . Two, we fitted three-parameter inverse-gamma distributions to the Probability Density Functions (PDFs) of landslide area for all years combined, all pre-2015 non perturbed years, 1989, 1993, 1995, 2002, 2015 and all post-2015 years (Fig.…”

Section: Empirical Relationship Between the Asm And Mass-wastingmentioning

confidence: 99%

“…Furthermore, prior to correlating mass-wasting with ASM strength, we removed the largest landslide from a given monsoon season if it had a scar-volume twice as large as the second largest landslide. This follows Marc et al, 3 and is designed to remove any landslides that are anomalously large for the monsoon-season in which they occurred, and thus likely caused by progressive failure across multiple monsoon-seasons (e.g., the Jure landslide 34,3 ). By removing these events, we can be confident that any identified perturbations are not due to a single anomalously large landslide.…”

Section: S1 -For All Other Correlations)mentioning

confidence: 99%

See 1 more Smart Citation

30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events

Jones¹,

Boulton²,

Bennett³

et al. 2021

Preprint

View full text Add to dashboard Cite

In mountainous environments, quantifying the drivers of mass-wasting is fundamental for understanding landscape evolution and improving hazard management. Here, we quantify the magnitudes of mass-wasting caused by the Asia Summer Monsoon (ASM), extreme rainfall and earthquakes in the Nepal Himalayas. Using a newly compiled 30-year mass-wasting inventory, we establish empirical relationships between monsoon-triggered mass-wasting and ASM precipitation before quantifying how other mass-wasting drivers have perturbed this relationship. We find that perturbations up to 5 times greater than that expected from the ASM alone are caused by rainfall events with 5 to 30 year return periods and short-term (< 2 year) earthquake-induced landscape preconditioning. In 2015, the landscape preconditioning induced perturbation is found to be strongly controlled by the topographic signature of the Gorkha earthquake, whereby high Peak Ground Acceleration (PGA) coincident with excess topography (rock volume above a landscapes threshold angle) amplifies landscape damage.

show abstract

Section: Empirical Relationship Between the Asm And Mass-wastingmentioning

confidence: 99%

Section: S1 -For All Other Correlations)mentioning

confidence: 99%

30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events

Jones¹,

Boulton²,

Bennett³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…It is still susceptible to the effect of rainfall and seismic forces which if determined, can be used to understand the slope stability and develop remedial measures. (Yagi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Influence of Soil Saturation and Seismic Load on the Post- Landslide Jure Slope, Nepal

Makaju,

Luitel,

Panthi

et al. 2023

Preprint

View full text Add to dashboard Cite

Landslides in Nepal pose a significant threat due to the country's active tectonics, delicate geology, rugged topography, and uncertain climate. The Jure landslide that occurred on August 2, 2014, has garnered particular attention due to the unprecedented loss of life and properties. This paper investigates the influence of soil saturation and seismic load on the post-landslide Jure Slope, Nepal utilizing RocScience Phase2, a finite element analysis software. The study is performed by geomechanical stimulation of the slope model using shear strength reduction method, appropriate boundary conditions and Mohr Column & Hoek-Brown failure criteria. The results shows that higher saturation levels lead to reduced shear strength and increased displacement, while positive horizontal seismic loads decrease the critical strength reduction factor, increasing susceptibility of the slope to failure. Remedial measures developed accordingly can protect the affected region from future landslides during heavy rainfall and earthquakes. By enhancing our understanding of slope behavior, this study helps to improve disaster preparedness and resilience in similar regions facing natural hazards.

show abstract

Catastrophic landslides and frontiers of landslide science

Vilímek

Wang

Strom³

2021

Landslides

View full text Add to dashboard Cite

Slope Deformation caused Jure Landslide 2014 Along Sun Koshi in Lesser Nepal Himalaya and Effect of Gorkha Earthquake 2015

Cited by 9 publications

References 4 publications

30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events

30-year record of Himalaya mass-wasting reveals landscape perturbations by extreme events

Influence of Soil Saturation and Seismic Load on the Post- Landslide Jure Slope, Nepal

Catastrophic landslides and frontiers of landslide science

Contact Info

Product

Resources

About